Can be practiced with Free Cisco Catalyst Switch Lab, Brendan Choi
1: Configure the switches
2: Configure VTP and VLANs 1,10,20,30,40,50,60,70,80,90,100.
3: Display spanning tree information.
4: Configure MST globally on all switches: 1 region, 1 instance for odd VLANs and 1 instance for even VLANs.
5: Make DLS1 the root of instance 1 and DLS2 the root of instance 2.